Usually I get the text alert for using 75 percent of my data and 95 percent of my data at the exact same time, or I won't receive an alert at all even though I go over the data limit, what's the problem? Seems pretty sneaky
nope not sneaky bit it does take the system 2 hrs to catch up on whats happening. Id suggest using an app like 3G watchdog for android and I think iPhone has a built in data watcher. Thery wont match exactly but it'll give you a rough idea of where you are consumptionwise.